Modern medicine believes that the causes of hyperhidrosis are diverse and complex, and can be broadly divided into two categories: functional disorders and organic diseases. Functional disorders are mostly related to autonomic (vegetative) nerve dysfunction, while organic diseases are related to nerve damage. According to Chinese medicine, “Yang plus yin is called sweating” (Su Wen – Yin and Yang, “The Theory of Yin and Yang”), so sweating is caused by yang energy evaporating fluid from the hair orifice to the body surface. The normal sweating has the effect of harmonizing Ying and Wei, moistening the skin, etc., which is “physiological sweating”. In the case of pathological sweating, we should pay attention to the time, amount and location of sweating and its main symptoms. Sweating after going to sleep and waking up is called night sweats, so sweating all over the body after sleeping belongs to the category of night sweats. The night sweats are different from the actual cold and hot, although mostly caused by Yin deficiency, but also by blood deficiency, wind labor, bruising, damp heat, internal heat, Ying and Wei disharmony, Yang Sheng and Yin deficiency, Yang deficiency and Qi deficiency, heart and kidney deficiency, Qi and Yin deficiency, seasonal epidemic and other different factors. 1, deficiency evidence of night sweats (1) Yin deficiency night sweats: clinical see night juice zygomatic red flashes hot five heart annoyance hot mouth dry pulse count and other symptoms is due to Yin deficiency heat disturbance, sweat leakage. Yin deficiency night sweating is the most common type of night sweating evidence. (2) Blood deficiency night sweats: clinical symptoms such as night sweats, palpitations, fatigue and sleeplessness are due to blood deficiency and lack of heart support. In women after childbirth or hemorrhage, night sweats, dizziness, tinnitus, dry mouth and throat, and irritable fever are caused by Blood deficiency and depletion of Ying-Yin, resulting in the leakage of forced fluid. In the case of blood deficiency, both spontaneous sweating and night sweating can be seen, and in the case of weak Ying-Yin, night sweating is often seen. (3) Yang deficiency qi deficiency night sweating: clinical symptoms such as coldness in the hands and feet, dizziness, shortness of breath, sweating, and weak pulse are symptoms of Yang deficiency qi deficiency night sweating. Patients with Qi deficiency and Yang weakness, Yang deficiency, couples not solid and cause sweating Qi deficiency and Yang deficiency cause spontaneous sweating, can also cause night sweating. (4) Qi-Yin two deficiencies night sweating: clinical see sweating like oil, panting, or night sweating body tiredness, palpitations, shortness of breath, red tongue, less moss, weak pulse and other symptoms, mostly seen in the late stages of external warm-heat disease, Qi-Yin two injuries or Qi-Yin big injury. 2. actual evidence of night sweats (1) internal heat night sweats: Yang-heat internal Sheng Yang Sheng Yin deficiency are visible night sweats. (2) damp-heat night sweats: clinically seen in the afternoon hot flashes, body heat, sleepy limbs, sweating in sleep, dull mouth, light tongue, thick greasy moss, slow pulse and other symptoms, is due to damp-heat stagnation of the three jiao, Qi-transformation disorder, yin and Yang disorder, couples do not solid. Damp heat can cause both spontaneous sweating and night sweating. (3) Stasis-heat night sweating: clinical symptoms such as night sweating, localized fever or fever in the afternoon or at night, skin nail fault, bruises or bruises on the tongue, etc., are caused by stasis of blood turning into heat and forcing the fluid to leak out. Blood stasis and heat can cause both spontaneous sweating and night sweating. (4) Night sweats due to disharmony of Ying and Wei: Clinical symptoms such as headache, fever, night sweats, and vicious cold are due to unresolved surface evil and disharmony of Ying and Wei. Treatment requires reconciliation of Ying and Wei. The disharmony of Ying and Wei can cause both spontaneous sweating and helmet sweating. ( 5) night sweats of the epidemic: when the epidemic is first seen in the night sweats of the chest and dampness or no dampness for the evil in the half of the table and half; if after sweating down, the fever has receded, there are night sweats, is the remaining evil is not exhausted. Mostly seen in infectious diseases.